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Thread: 4.11 vs 4.86

  1. #1
    Join Date
    Jul 2014
    Posts
    455

    Default 4.11 vs 4.86

    Is one preffered over the other? If so, why?

  2. #2

    Default

    4.11 has less drag

  3. #3
    Join Date
    May 2007
    Posts
    1,903

    Default

    4.11 also allows you to change gears in smaller increments

  4. #4
    Join Date
    Jul 2014
    Posts
    455

    Default

    Thanks, we have also ran a 4.86 but have noticed a lot of people running 4.11's

  5. #5
    Join Date
    Jul 2013
    Location
    Lost, but way ahead of schedule
    Posts
    1,514

    Default

    Keep in mind if you ever need to borrow a gear from someone, many people use the 4.86 so you might limit your resources. But I, too, have heard the less drag reasoning.

  6. #6
    Join Date
    Feb 2008
    Location
    Illinois
    Posts
    3,734

    Default

    I've heard the less drag point of view on the 4.11, but have also heard weaker small gear on the gear changes. The farther away from your base gear, the smaller the small gear is. Less teeth more torque on less teeth. To each his own.

  7. #7
    Join Date
    Jul 2014
    Posts
    455

    Default

    Running crate so not a lot of power

  8. #8
    Join Date
    Jul 2009
    Posts
    1,380

    Default

    Quote Originally Posted by Kwoods25 View Post
    Running crate so not a lot of power
    its less rotating weight,thats why there going to them,also if you go with titanium axles there is some more weight,if you do all you can there its about 20-30lbs of weight you can save there and its rotating weight

  9. #9
    Join Date
    Jul 2007
    Posts
    538

    Default

    Anybody running a 4.11/8" ring gear rearend in a dirt late model? What kind of engine/hp?
    Last edited by FlatTire; 10-31-2014 at 04:14 PM.

  10. #10
    Join Date
    Jul 2014
    Posts
    455

    Default

    thanks guys for all the info

  11. #11
    Join Date
    Dec 2013
    Posts
    20

    Default

    I have run my 602 crate late with the 4:12 8" in 10" housing for years with NO problems and it dose not have pinion nose support. If you get the center kit or a new rear with 8" winters offers it now with the nose support but you can not run lockers.
    Last edited by racer86; 11-11-2014 at 01:38 PM.

  12. #12
    Join Date
    Jun 2007
    Location
    Wisconsin
    Posts
    307

    Default

    We have been running an 8" Winters with an open motors and SUPR spec motors for three years now and lost the first one this year. These are real good Pro Power motors. We only lunched it after running on real rough tracks all season. We did end up cracking a couple of side bells this year, I think because of excess flex. If this flex happens at the wrong areas internally, I could see how this could lead to excess back lash and gear failure.
    But, I'm really just guessing on how that actually failed.

    Thanks,
    Kevin

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